World health Organization. (2001). Health research methodology: A guide for training in research methodology (2nd- ed.). World Health organization.
芝加哥风格引文World health Organization. Health Research Methodology: A Guide for Training in Research Methodology. 2nd- ed. Manila: World Health organization, 2001.
MLA引文World health Organization. Health Research Methodology: A Guide for Training in Research Methodology. 2nd- ed. World Health organization, 2001.
警告：这些引文格式不一定是100％准确.